MC Cartridge suggestions for Rega RB300?

I've been using a DL-103D for several years with an RB300 and now RB600 tomearm. Bass is lean with the stock Rega counterweight. It fills in nicely with the Heavyweight and presumably with the Kerry Audio titanium iteration. Also, my current favorite, the Michell Tecnowieght brings the bass into balance too. You have to spend more than 800 clams to do better than a Denon 103.

Phil

Thank you all for the suggestions, I will definitely look into the counterwight issue... I was under the impression that it was applicable only for the RB250... In any case I have already ordered the VTA adjuster ring from Michell and I will probably send the arm to a guy in Germany to change the cabling for about 200 USD.
My phono preamp is the Audio Analogue Aria MM/MC.
Regards,
Panayiotis

Ha! Thanks for posting 213Cobra! I do have a Technoweight on my modified RB250 so that's perhaps another reason why I haven't heard a lack of bass with the 103R.